"We had to make a decision between changing the shape of the bar, and raising the price. We chose to change the shape to keep the product affordable for our customers, and it enables us to keep offering a great value product," Toblerone said on its Facebook page.

Toblerone remains one of the best value and most delicious Swiss chocolate products in the market. This is because we always work hard to ensure we offer value for money for our consumers, but like many other companies, we are experiencing higher costs for numerous ingredients.

We carry these costs for as long as possible, but to ensure Toblerone remains on-shelf, is affordable and retains the triangular shape, we have had to reduce the weight of just two of our bars in the UK, from the wider range of available Toblerone products.

However, a spokesperson for Mondelez said that the change "wasn't done as a result of Brexit." Walkers and Birds Eye have both said they will hike prices as a result of the drop in Sterling post-referendum.